Name: China BESS 125KW 261kWh Lithium Battery Energy Storage Cabinet Manufacturers Suppliers - Chuangxun Energy
Brand: MECC
SKU: 285520631

MECC Liquid Cooling 125KW PCS + 261KWH Battery Energy Storage System

The 125kw+261kwh liquid -cooled Energy Cube utilizes an independent iquid cooling system, achieving higher energy density and cooling
capacity within a compact design. It offers high efficlency, low noise, safety, reliability, and easy scalabilty. Whenintegrated with PCS (Power Conversion Systems), it canregulate grid voltage, correct three -phase imbalance, and manageharmonics, enhancing power quality.

Detailed Product Features:

1. High-Efficiency LiFePO₄ Battery Technology

Delivers a long lifespan, enhanced safety, and high energy density

Maintains a 90% Depth of Discharge (DoD) for maximum energy utilization

2. Intelligent Energy Management System (EMS)

Supports multiple operating modes, including peak shaving, time-shifting, and emergency backup

Real-time monitoring and remote management capabilities

3. Independent Liquid Cooling

Features liquid cooling design with low noise operation at <75dB.

4. Advanced Safety & Protection Features

Optional AFCl to effectively prevent fire risks caused by arc faults, ensures system safety.

Multi-layer Protection: Supports battery health alerts and multi-layer protection mechanisms, ensures safety and stability during operation.

5. Easy Installation

Cost-effective Installation: Plug and play pre-assembled simplifies on-site setup. saves time and labor.

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product parameters

DC Side Parameters
Battery Type	LFP	Operating Voltage Range	650V～949V
Configuration	IP260S	Cooling Method	Liquid cooling
Rated Capacity	314Ah	Coolant	Ethylene glycol solution(50%v)
Rated Energy	261kWh	Cycle Life	6000 cycles
Rated Voltage	832V	Fire Protection System	Perfluorohexanone +Aerosol+ Water fire suppression
Rated Power	125kW	Detector Type	Temperature,smoke,CO
Rated Charge/Discharge C-rate	0.5P
AC Side Parameters
Rated AC Power	125kW
AC Overload Capability	135.5kW
Wiring Method	Three-phase,four-wire
Allowed Grid Voltage	380V/400V(-15%～+15%)
Allowed Grid Frequency	50Hz/60Hz±2.5Hz
Total Harmonic Distortion(THD)	≤3%(at full load)
Power Factor	-0.99/-1~1
DC Component in Current	≤0.5%
Charge/Discharge Conversion Time	<100ms
Maximum Conversion Efficiency	≥98%
System Parameters
Operating Environment	-20℃ to 50℃(de-rated operation above 45℃)
Noise Level	≤75dB
Dimensions(WDH mm)	100013002500
Weight	~2.6 tons
Water Resistance Rating	Battery compartment IP65,Electrical compartment IP54
Allowed Relative Humidity	0-95%(non-condensing)
Maximum Altitude	≤2000m(de-rating above 2000m)
Communication Interface	CAN,Ethernet
Communication Protocol	ModbusTCP/RTU
System Operation Mode	Peak shaving,demand control,reactive power adjustment, grid scheduling interface,Remote dispatch,local data storage,anti-backflow feature
Certification Standards	UN38.3;IEC 62619;IEC 61000,EN 62477-1,EN 50549-1,EN 50549-2,VDE-AR-N 4105

Usage scenario wiring diagram

125kw 261kwh

Cases

261kWh

Energy Storage Solutions

Facing high energy prices and growing demand for energy independence, an Estonian factory adopted five MECC ECO-E233LS cabinets with an STS1000 smart ransfer cabinet and three Autarco PV inverters. The on-grid self consumption system allows daytime solar charging and night time use, maximizing renewable utilization and reducing grid reliance.

With A -powered EMS and modular all-in-one design, helps industrial clients achieve stable power supply, lower electricity costs, and smarter energy management.

FAQ

What are the core specifications of the 125kW + 261kWh PCS liquid-cooled commercial & industrial energy storage cabinet?

This cabinet integrates a 125kW high-efficiency PCS (Power Conversion System), 261kWh lithium iron phosphate (LiFePO₄) battery pack, intelligent BMS (Battery Management System), and advanced liquid-cooling temperature control system. Its nominal continuous discharge power is 125kW, rated energy is 261kWh, and it adopts a high-voltage DC design (300V-800V) for commercial and industrial scenarios. Note: This cabinet cannot be directly connected to photovoltaic (PV) panels; it needs to be matched with a dedicated PV inverter for energy input from solar systems.

Why can't this energy storage cabinet be directly connected to photovoltaic panels?

This 125kW + 261kWh PCS liquid-cooled cabinet is designed as a dedicated energy storage unit, not an integrated PV-storage system. It lacks the dedicated PV charge controller and PV-side interface required for direct PV connection. To use it with photovoltaic systems, you must first connect the PV panels to a professional PV inverter (to convert DC power from PV panels into stable AC/DC power), and then connect the PV inverter to this energy storage cabinet for energy storage and conversion. Direct connection will cause equipment damage or system failure.

What are the advantages of the liquid-cooling temperature control system in this cabinet?

The cabinet adopts an advanced liquid-cooling temperature control system, which has obvious advantages over traditional air-cooling: ① More efficient heat dissipation: It can quickly and evenly reduce the temperature of the battery pack and PCS, ensuring stable operation under high-power long-term operation (125kW continuous discharge); ② Better temperature uniformity: The temperature difference between battery cells is controlled within ±2℃, which effectively extends battery life and improves system stability; ③ Lower noise: No large ventilation fans, suitable for industrial parks and commercial areas with noise requirements; ④ Adapt to high-temperature environments: Can maintain stable operation in high-temperature industrial scenarios (up to 60℃ ambient temperature).

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